<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>自定义组件</title>
    <script src="js/vue.js"></script>

</head>

<body>
    <div id="app">
        <Hello></Hello>
    </div>
    <script>
       Vue.component('Hello',{
           template: '<div>A custom component!</div>'
       })
        var vm = new Vue({
            el: '#app'
        })
    </script>
</body>

</html>